Table 1.
HPV infection | HPV |
Control |
Rate difference (95% CI) | Efficacy (95% CI), % | ||
---|---|---|---|---|---|---|
No. of cases | Rate per 1000 infection-years (95% CI) | No. of cases | Rate per 1000 infection-years (95% CI) | |||
Oncogenic HPV infection (types 35, 39, 52, 56, 58, 59, and 68/73) | 5247 | 13.2 (12.7 to 13.7) | 5842 | 14.8 (14.3 to 15.3) | 1.6 (0.9 to 2.3) | 10.8 (6.1 to 15.4) |
Oncogenic or nononcogenic HPV infection (types 34, 35, 39, 40, 42, 43, 44, 52, 53, 54, 56, 58, 59, 66, 68/73, and 70) | 9866 | 2.8 (2.4 to 3.1) | 10548 | 3.0 (2.6 to 3.4) | 0.2 (-0.3 to 0.7) | 7.7 (-10.5 to 22.9) |
CI = confidence interval; HPV = human papillomavirus.